Acacia implexa Benth.

Screw-pod wattle (en)

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Tree 3–15 m high, often gregarious due to suckering; bipinnate leaves may persist on young plants. Bark rough, greyish. Branchlets terete, not prominently ribbed, commonly lightly pruinose, glabrous. Phyllodes narrowly elliptic, falcate, 7–20 cm long, 6–25 mm wide, much-narrowed at base, acute to acuminate, sometimes ± obtuse, thinly coriaceous, green, glabrous, with 3–7 main veins and numerous longitudinally anastomosing minor veins in between. Inflorescences 4–8-headed racemes; raceme axes 10–45 mm long, glabrous; peduncles 6–15 mm long; heads globular, 5–6 mm diam., 30–52-flowered, cream to pale yellow. Flowers 5-merous; sepals ¾-united. Pods linear, coiled and twisted, to 25 cm long, 4–7 mm wide, ± woody or thickly coriaceous, glabrous. Seeds longitudinal, oblong-oval, 4–5 mm long, subglossy, dark brown; funicle/aril fleshy, white, folded beneath the seed.
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A small tree. It grows 4-5 m tall. The leaves have leaflets and these last on young plants. The phyllodes are narrow and 7-20 cm long by 1-2 cm wide. The flowers are in branched groups in the axils of leaves. The fruit are pods that are slightly raised over the seeds.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 4.0 - 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

Found in a variety of situations but often in shallow, well-drained soil in hilly country in woodlands or open forest.
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It grows in temperate and subtropical places. It suits an open, dry, well-drained position.
Grows in a variety of situations but often in shallow soil on hills in open forest.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 7-11

Usage

The wood has been used for turning, furniture making, tool handles and for fuel.
Uses animal food dye environmental use fuel material medicinal poison vertebrate poison wood
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It can be grown by seeds or cuttings.
Mode cuttings seedlings
Germination duration (days) 21
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Acacia implexa unspecified picture

Distribution

Acacia implexa world distribution map, present in Australia and New Zealand

Conservation status

Acacia implexa threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:470576-1
WFO ID wfo-0000192743
COL ID 64BZY
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acacia implexa Racosperma implexum